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| − | [[Seborrhea]] | + | #REDIRECT[[:Category:Integumentary System - Pathology]] |
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| − | ===[[Sebaceous Adenitis]]===
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| − | ==Pigmentation disorders==
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| − | ===[[Hypopigmentation]]===
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| − | ===[[Hyperpigmentation]]===
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| − | ==Eosinophilic infiltration==
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| − | ===[[Eosinophilic Plaques]]===
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| − | ===Eosinophilic granulomas===
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| − | *Involves cats, dogs, horses
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| − | *Collagen degeneration in lesions os eosinophil degranulation
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| − | *Often involved in reaction to parasites, foreigh bodies or mas cell tumours
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| − | *Grossly:
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| − | **Papules, nodules, plaques, ulcers in skin
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| − | **Nodules or ulcers in oral mucosa of cats and dogs or on foot pads of cats
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| − | *Microscopically:
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| − | **Nodular dermatitis or stomatitis
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| − | **Fragments of degenerated collagen surrounded by eosinophils and macrophages
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| − | [[Category:Integumentary System - Pathology]]
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| − | ===Eosinophilic folliculitis and furunculosis===
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| − | *Rare in cats, dogs, cattle and horses
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| − | *Possibly due to arthropod bites
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| − | *May be multifocal in horses
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| − | [[Category:Integumentary System - Pathology]]
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| − | ==Sterile granulomatous disorders==
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| − | ===Juvenile pyoderma===
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| − | *Also known as '''Juvenile sterile granulomatous dermatitis and lymphadenitis, juveline cellulitis, puppy strangles'''
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| − | *Involves dogs of less then 4 months of age
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| − | *Grossly: pustular and nodular dermatitis with oedema involving the face, ears, mucocutaneous junctions
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| − | *Microscopically: granulomatous or pyogranulomatous perifolliculitis, paniculitis and dermatitis
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| − | [[Category:Integumentary System - Pathology]]
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| − | ===Equine generalised granulomatous disease===
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| − | *Also known as '''Sarcoidosis'''
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| − | *In horses
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| − | *Rare
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| − | *Involves cutaneous lesions and systemic disease causing anorexia and weight loss
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| − | *Grossly: alopecia, scales, crusts, sometimes nodules and masses
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| − | *Microscopically: multifocal granulomas, multinucleated giant cells
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| − | [[Category:Integumentary System - Pathology]]
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